| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] [adv prt] [prep] | 1942 |
|
| 2 | but when [pron] [verb] [prep] | 453 |
|
| 3 | but [pron] [verb] [adv prt] [prep] | 376 |
|
| 4 | but when [pron] [verb] [adv prt] | 236 |
|
